Uses pressurized water supplies. Eliminates the neeed for troublesome float tanks with their inherent problems such as corrosion, leakage, stuck valves, and clogged screens.

Uses a unique demand principal of operation. When the pump is turned on a vacuum is instantly produced in the pump suction line, acting upon the regulator diaphram and allows water to enter the pump. When vacuum reaches approximately 5"HG (Mercury), the regulator will balance and hold the suction line pressure. Even with irregular water pressure, the PR-1000A will maintain constant delivery of chemicals being injected into the system. Chemical metering into the system is more accurate than any other method except very expensive precision metering pumps.

One very valuable characteristic of the PR-1000A is its ability to prevent overpressurizing the pump suction line when an unloader valve is used in the system. A built-in return check valve allows the suction line to balance out at the normal water supply pressure, eliminating the inlet pressure surges that are common with most unloaders.For precise repeat on/off chemical metering, we recommend the use of a chemical metering valve and a suitable chemical check valve to prevent black flow of water into the chemical container.